Math, asked by parasbirmiwal, 4 months ago

Calculate the least number of terms of the series 5 +10+20
would exceed 10,00,000.
.

Answers

Answered by samarendralaishram54

13

Step-by-step explanation:

a1=5

r=2

an=a1*(r)^n-1

5120=5*(2)^n-1

(2)^10=(2)^n-1

-1n=1

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